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EP0077243A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Method to record data representative of the form of an object

Assignee: Lemoine & Cie Ets
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Filing: 1982-09-30
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Granted: —
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Expires: 2002-09-30
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Abstract

Abstract Translated from French Procédé de palpage de la forme d'un objet en vue de la reproduction de cet objet par usinage. Selon l'invention, on recherche des positions de contact entre le palpeur et l'objet définissant des pôles (A, D, G, J, M) dont les coordonnées sont mémorisées et on interpole le contour (K2) représentatif de la forme de l'objet par une succession d'arcs de cercle (K3) passant par certains de ces pôles et dont les rayons sont voisins des rayons de courbure de portions correspondantes dudit contour; la reproduction ultérieure du modèle se faisant ainsi à partir d'une succession de coordonnées de pôles et d'une succession d'équations d'arcs de cercle. L'invention se prête aussi à une procédure d'élimination de pôles inutiles, compte tenu de la précision d'usinage recherchée. Method of probing the shape of an object with a view to reproducing this object by machining. According to the invention, contact positions between the probe and the object defining the poles (A, D, G, J, M) whose coordinates are stored are sought, and the contour (K2) representative of the shape of is interpolated. the object by a succession of arcs of a circle (K3) passing through some of these poles and whose radii are close to the radii of curvature of corresponding portions of said contour; the subsequent reproduction of the model is thus made from a succession of pole coordinates and a succession of equations of arcs of a circle. The invention also lends itself to a procedure for eliminating unnecessary poles, taking into account the desired machining precision.

Inventors

  • 👤 Jean Pouyet

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-04 12:47
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/42; G05B19/4202; G05B19/4207; G05B2219/00; G05B2219/30; G05B2219/34; G05B2219/34101

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

FR1494945A Cited
DE1060968B Cited
DE1563503A1 Cited
FR1557915A Cited
GB1233135A Cited
FR2061306A5 Cited
EP0041808A1 Cited

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